- On FreeBSD, no KF6 was available
- On KDE Neon Unstable, there are somewhat wonky KF6 packages available
- Adjust CMake to find the KDE Neon versions, then fix the C++ code
- While this is primarily convenient for testing (e.g. checking
that a command is expanded the way we expect), it simplifies
some of the code because it's now clear that run() uses an
expanded copy of the command-list to do the actual work.
